2020-09-02_HYDROLOGY - M1986015

• Permit No: M1986015
• IBM Index Class Name: Hydrology
• Doc Date: 9/2/2020
• Doc Name: Substitute Water Supply Plan
• From: DWR
• To: DRMS
• Email Name: JPL
• Media Type: D
• Archive: No

Table 1
Castle Aggregates-Pueblo East Pit Phase 1
Projected Depletion Analysis(June 2020-May 2022)
Surface Area Total Natural Vegetation Credit Net Pond Total Net
of Exposed Gross Gross Effective Effective Phreatophyte Phreatophyte Total Natural Evaporative Dust Unlagged
Ground Water Evaporation Evaporation Precipitation Precipitation CU Reduction Vegetation Depletions Control Depletion
(ac) Rate(ft) (ac-ft) Rate(ft) Credit(ac-ft) (ft) Credit(ac-ft) Credit(ac-ft) (ac-ft) (ac-ft) (ac-ft)
Month 1 2 3 4 5 6 7 8 9 10 11
Jun-20 65.0 0.60 39.00 0.08 4.75 0.60 3.36 8.11 30.89 0.91 31.80
Ju1-20 65.0 0.63 40.95 0.11 6.53 0.63 3.53 10.06 30.89 0.93 31.82
Aug-20 65.0 0.56 36.40 0.12 7.13 0.56 3.14 10.26 26.14 0.93 27.07
Sep-20 65.0 0.42 27.30 0.05 2.97 0.42 2.35 5.32 2 L98 0.91 22.89
Oct-20 65.0 0.29 18.85 0.04 2.38 0.29 1.62 4.00 14.85 0.93 15.78
Nov-20 65.0 0.17 1 1.05 0.03 1.78 0.04 0.22 2.01 9.04 0.91 9.95
Dec-20 6.5.0 0.12 7.80 0.02 1.19 0.00 0.00 1.19 6.61 0.93 7.54
Jan-21 65.0 0.12 7.80 0.02 1.19 0.00 0.00 1.19 6.61 0.93 7.54
Feb-21 65.0 0.15 9.75 0.02 1.19 0.00 0.00 1.19 8.56 0.85 9.41
Mar-21 65.0 0.23 14,95 0,05 2.97 0.06 0,34 3.31 11.64 0.93 12.57
Apr-21 65.0 0.38 24.70 0.07 4.16 0.38 2.13 6.29 18.41 0.91 19.32
May-21 65.0 0.50 32,50 0,08 4.75 0.50 2.80 7.55 24,95 0.93 25.88
Jun-21 65.0 0.60 39.00 0.08 4.75 0.60 3.36 8.11 30.89 0.91 31.80
J111-21 65.0 0.63 40.95 0.11 6.53 0.63 3.53 10.06 30.89 0.9 3 31.82
Aug-21 65.0 0.56 36.40 0.12 7.13 0.56 3.14 10.26 26.14 0.93 27.07
Sep-21 65.0 0.42 27.30 0.05 2.97 0.42 2.35 5.32 21.98 0.91 22.89
Oct-21 65.0 0.29 M85 0.04 2.38 0.29 1.62 4.00 14.85 0.93 15.78
Nov-21 65.0 0.17 11.05 0.03 1.78 0.04 0.22 2.01 9.04 0.91 9.95
Dec-21 65.0 0.12 7.80 0.02 1.19 0.00 0.00 1.19 6.61 0.93 7.54
Jan-22 65.0 0.12 7.80 0.02 1.19 0.00 0.00 1.19 6.61 0.93 7.54
Feb-22 65.0 0.15 9.75 0.02 1.19 0.00 0.00 1.19 8.56 0.85 9.41
Mar-22 6.5.0 0.23 14.95 0.05 2.97 0.06 0.34 3.31 1 L64 0.93 12.57
Apr-'-"2 65.0 0.3 8 24.70 0.07 4.16 0.38 2.13 6.29 18.41 0.91 19.32
May-22 65.0 0.50 32,50 0.08 4.75 0.50 2.80 7.55 24.95 0.93 25.88
202 0-2 021 Total - 4.17 271.05 0.69 40.99 3.48 19.49 60.47 210.58 11.00 221.58
2021-2022 Total - 4.17 217 L05 0.69 40.99 3.48 19.49 60A7 210.58 1 1.00 221.58
Notes:
[1]Phase 1 maximum anticipated exposed ground water surface area is 65.0 acres.
[2]Gross Evaporation Rate equals 4,17 feet per year,based upon NOAA Evaporation Atlas.Monthly distribution based upon SB-120 Guidelines.
[3]Gross Evaporation equals[1]x[2].
[4]Effective Precipitation Rate equals 70%of total precipitation,based upon NOAA Pueblo Memorial Airport weather station.
[5]Effective Precipitation Credit equals[4]x([11-5.6),based upon 5.6 acres of phi eatophyte area in Phase 1.
[6]Average monthly potential consumptive use in Blaney-Criddle analyses for Phase 1 based on a depth to ground water of 6 feet.Values limited on monthly basis to gross evaporation in[2].
[7] Phreatophyte Reduction Credit equals[6]x 5.6 ac,based upon 5.6 acres of 100%canopy cover.
[8]Total natural vegetation credit equals[5]+[7].
[9]Net pond evaporation equals[3]-[8].
[10]Dust control depletions are asSlaned to be 100%consumptive and are based upon historical annual dust control pumping volumes.
[11]Phase 1 net unIagged depletion equals the sum of net pond evaporation and water used for dust control,[9]+[10].
B BA
51132020 1:18 PM PJB
waterconSUIL;anta BISHUF-BRoGDEiv ASSOCIATES. INC.